body {
    background-image: url('https://images.unsplash.com/photo-1603793303277-ed67787545e5?ixlib=rb-1.2.1&ixid=MnwxMjA3fDB8MHxzZWFyY2h8M3x8c2FudGF8ZW58MHx8MHx8&auto=format&fit=crop&w=800&q=60');
    background-repeat: no-repeat;
    background-size: cover;
    background-color: red;
}

.heading {
    display: flex;
    justify-content: center;
}

h1 {
    font-size: 60px;
    background-color: rgba(251, 248, 249, 0.9);
    padding: 20px;
    border: 3px solid black;
    font-family: "Montserrat", sans-serif;
}

.container {
    display: flex;
    justify-content: space-around;
    flex-wrap: wrap;
}

.christmas {
    background-color: rgba(251, 248, 249, 0.82);
    height: 300px;
    width: 200px;
    margin-top: 50px;
    border: 3px solid black;
}

.block {
    display: flex;
    flex-direction: column;
    align-items: center;
}

h3 {
    font-family: "Montserrat", sans-serif;
    font-size: 30px;
}

.days, .hours, .minutes, .seconds {
    font-family: "Montserrat", sans-serif;
    font-size: 40px;
}

.red {
    font-size: 60;
    border: none;
    font-family: "Staatliches", cursive;
    color: red;
}

.btn {
    display: flex;
}

button {
    margin-left: 100px;
    border: none;
    z-index: 1;
}

@media all and (max-width: 800px) {
    h1 {
        font-size: 40px;
    }
}

@media all and (max-width: 500px) {
    h1 {
        font-size: 30px;
    }
}

#particles-js{ 
    position:absolute; 
    width: 100%; 
    height: 100%; 
    background: #159957;  /* fallback for old browsers */
    background: -webkit-linear-gradient(to right, #155799, #159957);  /* Chrome 10-25, Safari 5.1-6 */
    background: linear-gradient(to right, #155799, #159957); /* W3C, IE 10+/ Edge, Firefox 16+, Chrome 26+, Opera 12+, Safari 7+ */
    background-image: url(""); 
    background-repeat: no-repeat; 
    background-size: cover; 
    background-position: 50% 50%;
    /* z-index: -1;  */
}